Excessive a.* clause about fluentpdo HOT 3 OPEN

$query = new \Envms\FluentPDO\Query($this->pdo);
$query = $query
    ->from('articles AS a')
    ->select(null)
    ->select("a.id, a.title, a.cdate")
    ->where("a.s_hidden = 0")
    ->where("a.s_draft = 0")
    ->leftJoin("articles_keys AS ak ON ak.aid = a.id")
    ->orderBy("a.cdate DESC")
    ->groupBy("a.id");

var_dumo( $query->getQuery() );